Stove.



f UNITED STATES PATENT OFFICE..

. JosIArr B. GATHRIGHTAND HENRY J. Turni/mujer LOUISVILLE, KENTUQK.

smovnj.

-peccation of Letters Pat-ent.

Application led July 2, 1912. Sera1 No. 707,192.

RIGHT and HENRY- J. THInMANcitizens of v the United States, residing at Louisville, in

the county of .Jefferson and State of Ken-- tucky,`have invented new and useful Improvements in Stoves, of which the following is aspecitication. y

One of themost important objects of the present invention is to provide a stove of the underdraft kind, having a magazine for fuel, and having the magazine and accessory parts so constructed that the fuel will' freely feed to the fire andnot lodge by pressure against the walls from coking, or Othelwise, nor find any place of lodgrnent on an part of the stove'above the fire line.v

Another object is to construct such stove in such a way that it may be'used for cooking as well'as heating purposes.

A further object of the invention 4is to provide a correlation of parts such that an insulating air-chamber will. be arranged between the exhaust or combustion chamber vand the wall of the coal magazine, to prevent premature or excessive coking of the material before it reaches the tire pot.

lIn accordance' with these objects and others which will hereinafter appear, we have provided a stove which is characterized by novel constructions'of elements and novel correlations thereof, the stove shown in the. accompanying drawings and. hereinafter described in detail fully eXempli-fying what is now regarded to be the best form of the invention. 'It should Vbe understoodl however that changes may be made' in the details without departing from the spirit of the invention as defined by the subjoined. claims. l

In the drawing: Figure 1 is a vertical,. longitudinal sectional View through the center of a stove constructed in accordance with the invention. Fig. 2 is a sectional .view on 45' the 'line 2-2 of Fig. 1. l l

Similar reference characters indicate corresponding parts throughoutvboth views in the drawing.

The stove comprises a body 5 yandv a bottom 6, the body being preferably'of cylindrical shape and the bottom of drop form so as to serve as apan for catching the ashes therein. The body is supported upon 'a suit- -20 and is ari4 able number of legs 7, fixed thereto in any suitable manner. i

Suitablyfxedl interiorly of the bod 5 Patented N oy. 5, 1912.1

and spaced from the bottom 6 are brac iets 8,' on which are journaled vertical and horizontally disposed friction rollers 9,'and 10 respectively for. rotatably ysupporting -Inainl and floating grate: sections ll and l12 re-vspectively, t-he oating section being-superimposed upon' the main section, and formed with-a. central opening 13 through which projects a vertical, central tubiforme'd dome 14:, rising from the main grate section 11 to a point- -at or above the fire line in the stove body `and being provided with vertical slots l 15 or other suitable lateral apertures to'afford proper draft 'and escape for the ashes'.

Theupper end ofthe dome is closedand has fixed therein a central, vertical supporting Vstem rod 16, which carries at its upper end a'conical head 17. This head 17 closes the upper end of adownwardly tapered guiding i core or 'tube 18, the lower'end of which is engaged' and supported upon a shoulder `19 fornzedat the upper closed-end of the dome 14. The core or tube 18 is designed to guide the fuel and prevent its lodging u on thegrate dome 14,'and extendsupwar vly een trally into the magazine chamber 20- yfor substantially the entire length of the same.

The magazine chamber.' 20 has its outerv wall formed of an upwardl)r tapered in'n'er cylinder or drum 21 and is suitably'itted at its upper 'end to an 4annular toprin'g 22.v atthe .upper end ofthe body 5 of the stove,

this lring 22' being designed to serve as a cooking head-'when it is desired to usethe stove -for such purposes.I The upper elid of .the magazine chamber 20I is closed' by a cover or vlid 23' having a central hand' knob 24-to permitit to be raised and lowered at will.`

The fuel sntroduced through the upper open end of the magazine 20. 'Up'on .the'fl'at top plate or ring 22 is an upwardly `bowed or convex ring-like cap 25 which' servesitogive ornamental effect 'to the top of the stove when lnot being used for cooking purposes.

Surrounding the cylinder or -drumf2lamd,-

spaced therefrom is a drum.26 Lforrriing'fvi the cylinder or' drum nin'sulating air chamber 27wli'ijch extends-around chamber f v ged "between said `Chamber and the combustion chamber-31. The lower end of this chamber 27 is closed by a fire brick rmg 28 suitably secured in placebetween the said drums -21'land 26, while its upper end is closed by a circular plate or.

ring 2i? which has a lateral projection or baffle ring 29EL extending into a smoke chamber 30 and cooperating with a baffle plate orv ring-33 having an outlet 34 to rovidey a smokepassage from the combustion chamber 31 to the smoke chamber 30. The bafilesl 33 and .29a are spaced apart at such distance that the entire area of the opening for the escape of the waste products into the chamber l30 will be practically equal to the area of the stove pipe thimble, the waste products passing through the outlet 34, then'ceunder.

- the plate or ring 29a and into the chamber 30 and thence to an outlet draft flue 35 which is fixed to the body through the medium of a end of vthe bowl is preferably formed kwith a beveled edge 38, andthis together with the hopper shape of the bowlprevents possibility of the ashes or other stuff'lbankingor slodging thereon.

It will be noted itthat the guide -tube or core 18 at its lower is flush with the longitudinal surface ofy lie dome` 14 of the grate, so that there wlill be no obstruction thereat in the path of the fuel in the magazine chamber, and also that by reason of the tapering of the said core or tube 1 8 reversely with respect to the taper of the outer .wall

of the magazine 20, whereby the inner and outer walls of-said magazine constantly diverge-in their downward direction, proper feed of the fuel to the, combustion chamber -is secured-and tendency of the lodgment of fuel in` thefmagazineA chamber,V caused by coking, or otherwise, is veffectually prevented. ,Itwill rfurther be noted that the wall y:21.of theA continually widening magazine chamber' forms with the wall 26 an insulating air chamber 27'around the magazine, and that this preventspremature orfeXc'essivecoking of the fuel before it reaches the fire pot. H

Formed on 'the main and floating sections i `11 and-12 ofthe grate are forward extend- 4 ing stokerarms' or leversv 39 to permit the convenient shaking of the grate in the usual ywell-known manner, thefloating section 12 -beingprovided with ball recesses 40 receivingv bearing balls-41 whlch are adapted to travel upon lthe-main -section 11 of the grate so as' to avoid friction during the shaking of Athe said grate.

- The'front of the stove is provided'with a door 42 to permit access to .be had to the-` stokerlevers as well as'to allow for the removal of the ashes from the ash p it143, door thereof having suitable draft ope;

and regulating devices-thereforf Havlng'no'w described the preferred ein:l

bodiment of the present invention what we l believe to -be new and desire to secure by Lettersv Patent, is:

1. A stove comprising a body, main and fioating grate Asections supported in the body, aslotted dome rising centrally from the main grate section, and terminating at or above the plane of the fire line, an in-` wardly tapered core supported on the dome, and,V an outwardly tapered cylinder surrounding the coreforming a magazine chamber about said core. u

2. A stove comprising a body, main and floating grate sections 'supported in the body, a slotted dome-rising centrally from the main grate section, and terminating at or above the plane of the fire line,- an inwardly tapered-core-supported on the dome, an outwardly tapered cylinder surrounding the core forming a fuel magazine about said core, and a drum concentrlcallyl dlsposed sulating space around the fuel magazine and .a combustion chamberbetween the body and said drum. V

3. A stove comprising a bodyz main and fioating grate sections supported 1n the body" vv withre'spect tothe cylinder, forming an inspaced from its bottom, a slotted dome rising centrally from the main grate section, vand terminating at or abovethe fire line,',an inwardly tapered core supported on the dome, an outwardly tapered cylinder surrounding thecore and forming a magazine chamber about said core, a drum concentrically disposed with respect to said cylinder forming an insulating chamber between the magazine chamber and the combustion' chamber, and aihopper-shaped fire bowl in- @teriorly of the body above said grate sec tions. A Q L 4. A stove comprising a body, main and floating grate sections supported in'the body, :L -slotted dome risingfcentrally from the grate, and termi nati-ng in a plane with the fire line, Yan inwardly tapered core supported on the dome, an outwardly tapered cylinder surrounding the core and supported by the top of the body to form a magazine chamber about said core, a drum concentrically disposed with respect to the cylinder for forming an insulating chamber between -the magazine and combustion chambers, aho

per-shaped fire bowl `interiorly of thebo y- "a slottedl dome rising centrally from the main grate! section, and terminating at or aboyea plane yvsjith the re line in said stove, 'an lnwardly tapered core supported on the dome, an outwardly tapered cylinder' surrounding the-core to -:[orm ajuel chamber .about said core, a drum concentrically dis- 'h 4 osed I-with respect to said'. cylinder for ormln'g an insulating chamber betweensaid magazine and the combustion chamber, a hopper-shaped. fire bowl interiorly-` of the abtve said gratepsections, reversely eX,-

ten ingv spaced bale'plates fixed tothe body anddrum respectively to -form an escaping chamberin communication with and'above the combustion chamber, and means closingthe lower end of" the insulating chamber;I

laf; slotte 20 6.-:1A .stove comprising v a body, mainand" 4floating. '(gratesectlons supportedin thebody,

dome rising' centrally from "fthe grate section, and .terminating .ator= zaboveh'ajplane -with the'ffire 'line in said Aist e',; a1"1'j inwardly tapered core supported he4 dome,an outwardly Atapered' cylinder surroundinggthe'core lto form a. fuel chamber about fsa-id teore,` ai drlrmgconcentrically dis? os'ed Withrespeet to' saidcylinder for forman" insulating' chamberjbetween said. ln'agazline-and the combustion"chamber,. a.

,.-l1opper-5sli'ape.d-l Afire bowl `interiorly of f the bod abve said grate sections, reversely ex ten ing spaced baille lates fixed to th body anddrumrespective yto form an escaplng chamber ,communication with and above the combustion chamber', means closing the "endgof the insulating chamber, and

zontal and vertical friction rollers ing with said grate sections.

A- stove comprising a body, main and `floating grate sections supported in the body, a slotted 'dome rising centrally from the main grate section, and terminating. ator above a plane' With the tire line in said the dome, an y-outvvfardly tapered cylinder surrounding thecore to 'form a fuel .chamvber about said core, a drum `(':oi'ic'entrically Idisposed with respect to said cylinder for -magazine 4 and the combustion chamber, a hopper-shaped lire bowl nteriorly 'of the -body above -said grate sections, reversely 4extending s "acevd baffle plates fixed to the body and" .gr-urn` 'respectively to form-'an ,escaping chamber in communication with y'and above'the combustion chamber, means vfelosi'ng the lower end of th`ej insulating HENRY J. THIEMAN. V'V'itnesses:

L. M. BRoDERIox,

R. S. SAUERMANN.

AJosnmv B. GATHnIG-Hr.' I'

brackets .in the and having horii contactstove-, an inwardly' tapered core supported on n formingan insulating chamber between said 'l 

